<template>
  <div class="ScrollablePie-container">
    <el-card>
      <div id="ScrollablePie" :style="{width: width, height: height}"></div>
    </el-card>
  </div>
</template>

<script>
import * as echarts from 'echarts'
import { getColor } from '@/utils/Color.js'

export default {
  name: 'ScrollablePie',
  props:{
    height:{
      type: String,
      default: '200px'
    },
    width:{
      type: String,
      default: '200px'
    }
  },
  mounted () {
    this.$nextTick(() =>{
      this.initCharts()
    })
  },
  methods: {
    initCharts(){
      const chartHeight = {
        height: this.height
      }
      const charts = echarts.init(document.getElementById('ScrollablePie'),null,chartHeight)
      const data = genData(30);
      const Color = getColor()
      const option = {
        color: Color,
        title: {
          text: '同名数量统计',
          subtext: '纯属虚构',
          left: 'left'
        },
        tooltip: {
          trigger: 'item',
          formatter: '{a} <br/>{b} : {c} ({d}%)'
        },
        legend: {
          type: 'scroll',
          orient: 'vertical',
          right: 10,
          top: 20,
          bottom: 20,
          data: data.legendData
        },
        series: [
          {
            name: '姓名',
            type: 'pie',
            radius: '95%',
            center: ['50%', '50%'],
            data: data.seriesData,
            emphasis: {
              itemStyle: {
                shadowBlur: 10,
                shadowOffsetX: 0,
                shadowColor: 'rgba(0, 0, 0, 0.5)'
              }
            }
          }
        ]
      };
      function genData(count) {
        const nameList = [
          '赵', '钱', '孙', '李', '周', '吴', '郑', '王', '冯', '陈', '褚', '卫', '蒋', '沈', '韩', '杨', '朱', '秦', '尤', '许', '何', '吕', '施', '张', '孔', '曹', '严', '华', '金', '魏', '陶', '姜', '戚', '谢', '邹', '喻', '柏', '水', '窦', '章', '云', '苏', '潘', '葛', '奚', '范', '彭', '郎', '鲁', '韦', '昌', '马', '苗', '凤', '花', '方', '俞', '任', '袁', '柳', '酆', '鲍', '史', '唐', '费', '廉', '岑', '薛', '雷', '贺', '倪', '汤', '滕', '殷', '罗', '毕', '郝', '邬', '安', '常', '乐', '于', '时', '傅', '皮', '卞', '齐', '康', '伍', '余', '元', '卜', '顾', '孟', '平', '黄', '和', '穆', '萧', '尹', '姚', '邵', '湛', '汪', '祁', '毛', '禹', '狄', '米', '贝', '明', '臧', '计', '伏', '成', '戴', '谈', '宋', '茅', '庞', '熊', '纪', '舒', '屈', '项', '祝', '董', '梁', '杜', '阮', '蓝', '闵', '席', '季', '麻', '强', '贾', '路', '娄', '危'
        ];
        const legendData = [];
        const seriesData = [];
        for (var i = 0; i < count; i++) {
          var name =
            Math.random() > 0.65
              ? makeWord(4, 1) + '·' + makeWord(3, 0)
              : makeWord(2, 1);
          legendData.push(name);
          seriesData.push({
            name: name,
            value: Math.round(Math.random() * 100000)
          });
        }
        return {
          legendData: legendData,
          seriesData: seriesData
        };
        function makeWord(max, min) {
          const nameLen = Math.ceil(Math.random() * max + min);
          const name = [];
          for (var i = 0; i < nameLen; i++) {
            name.push(nameList[Math.round(Math.random() * nameList.length - 1)]);
          }
          return name.join('');
        }
      }
      charts.setOption(option);
    },
  }
}
</script>

<style scoped>

</style>
